公开(公告)号：CA1179367A

公开(公告)日：1984-12-11

申请号：CA381717

申请日：1981-07-14

Applicant: FMC CORP

Inventor： LIAO HSIANG P ,  MOHR RICHARD A ,  START JOHN F

IPC: B01J19/18 ,  C07C67/00 ,  C07C407/00 ,  C07C409/00 ,  C07C409/24 ,  C07C179/10

Abstract: : CONTINUOUS PROCESS FOR THE PRODUCTION OF PEROXYCARBOXYLIC ACID COMPOSITIONS Peroxycarboxylic acid compositions containing stabilizing ingredients are produced by the hydrogen peroxide peroxidation of corresponding carboxylic acids which are not substantially soluble in water by a continuous process in which the peroxidation reaction takes place in solution in concentrated sulfuric acid, or other strong acid, while that solution is intimately interdispersed, by means of agitation, with methylene chloride, or other organic solvent, in which the resulting peroxycarboxylic acid is soluble, but the carboxylic acid is not, and the sulfuric acid, or other acid, is recovered from the effluent of the process by reacting it with borax and caustic soda or soda ash to form crystals of boric acid and sodium salt of the strong acid which, in admixture with peroxycarboxylic acid recovered from the effluent, form the peroxycarboxylic acid composition product. The methylene chloride is also recovered from the effluent and recycled to the process.

公开(公告)号：CA1070085A

公开(公告)日：1980-01-22

申请号：CA256867

申请日：1976-07-13

Applicant: FMC CORP

Inventor： MOHR RICHARD A ,  BHALLA SUSHIL K ,  ZEH PETER H

IPC: C01B15/10 ,  C01B15/00

Abstract: TITLE: PROCESS FOR DRYING SODIUM CARBONATE PEROXIDE Manufacturing dry, free-flowing crystalline sodium carbonate peroxide by passing a gas stream at a temperature between 70.degree. and 150.degree.C into a drying zone containing moist sodium carbonate peroxide while maintaining the exit gas stream temperature between 50.degree. and 130.degree.C until the sodium carbonate contains between 0.05% and 0.5% by weight moisture, immediately passing the dried material into a cooling zone where the sodium carbonate peroxide temperature is lowered to between 0.degree. and 40.degree.C, and removing a dry, free-flowing, crystalline sodium carbonate peroxide product containing between 0.001 and 0.20% by weight moisture.

公开(公告)号：CA1070084A

公开(公告)日：1980-01-22

申请号：CA256866

申请日：1976-07-13

Applicant: FMC CORP

Inventor： BHALLA SUSHIL K ,  MOHR RICHARD A ,  ZEH PETER H

IPC: B01D9/00 ,  C01B15/10 ,  C01B15/00

Abstract: CONTINUOUS CRYSTALLIZATION PROCESS FOR PREPARING SODIUM CARBONATE PEROXIDE A continuous crystallization process for producing stable high bulk density sodium carbonate peroxide having a uniform particle size distribution by reacting an aqueous hydrogen peroxide solution and a purified sodium carbonate solution to maintain the sodium carbonate peroxide concentration above its solution saturation limit while evaporating water in a molar ratio of about 1.5 to about 15.0 moles of water per mole of sodium carbonate peroxide produced.

公开(公告)号：CA1303330C

公开(公告)日：1992-06-16

申请号：CA582188

申请日：1988-11-03

Applicant: FMC CORP

Inventor： MUNDAY THEODORE F ,  MOHR RICHARD A

IPC: C01B25/02 ,  C22B4/00 ,  C22C3/00 ,  C01B25/01 ,  C21C7/064 ,  C21B13/12

Abstract: : PROCESS FOR RECOVERING ELEMENTAL PHOSPHOR US AND A METAL CONCENTRATE FROM FERROPHOS Ferrophos is treated in a plasma furnace by maintaining an electric arc between a cathode and at least one point on the surface of the ferrophos which serves as the anode in the presence of an inert plasma gas, maintaining the average temperature of the ferrophos at about 2,000.degree.C to about 2,700.degree.C, evolving gaseous phosphorus from the ferrophos until it contains less than about 7% by weight phosphorus, removing a purified phosphorus gas as one product and a metal concentrate having a reduced phosphorus content as a coproduct.